Head posture detection method, device and earphone

Abstract

The invention discloses a head posture detection method, a device and an earphone. The method comprises the following steps of respectively acquiring acceleration data acquired by an acceleration sensor in an earphone and magnetic field data acquired by a magnetic force sensor in the earphone at the same moment; calculating the attitude angle of the above moment based on the acceleration data andthe magnetic field data at the same moment; respectively calculating a first difference value between a pitch angle and a preset standard pitch angle, a second difference value between a rolling angleand a preset standard rolling angle, and a third difference value between a course angle and a preset standard course angle; judging whether the composite angle of the first difference value, the second difference value and the third difference value is larger than a first angle threshold value or not; if yes, determining a head posture to be abnormal and sending a head posture abnormal instruction to a motor in the earphone. In this way, the motor conducts the vibration prompting according to the head posture abnormal instruction. According to the technical scheme, the swinging error of a gyroscope is avoided. A judgment strategy for the composite motion of a head is adopted, so that the detection accuracy of the head posture of a user is improved. The user experience is improved.

Description

technical field [0001] The invention relates to the technical field of earphones, in particular to earphones. Background technique [0002] In modern life, wearing earphones has become a daily living habit of users. For example, on the way to work, wearing earphones to listen to music or news can make full use of time. However, when the user wears the earphone, the user often has a bad posture, which brings bad consequences. For example, in a public place, shaking his head constantly with the music played in the earphone will cause a bad public image on the one hand, and on the other hand. On the one hand, it is not conducive to the physical and mental health of users. Therefore, there is a need for an earphone that monitors the user's head posture, so as to remind the user to make adjustments in time when the user is in an incorrect head posture. [0003] The head posture detection technology of the headset in the prior art uses the gyroscope sensor for posture calculatio...

AI Technical Summary

Problems solved by technology

[0003] The head posture detection technology of the headset in the prior art uses the gyroscope sensor for posture calculation, or directly analyzes the sensor value based on the gyroscope, and the judgment standard for the head posture is single, only from three separate postures Angle to judge the angle threshold

On the one hand, due to the back-swing phenomenon of the gyroscope itself, the head posture monitoring is inaccurate, and the cost and power consumption are relatively large.

If the selected time threshold is 3s, the measurement result is inaccurate due to the error of the gyroscope itself in the first 1-2 seconds

On the other hand, abnormal head postures will be missed and will not be prompted, which will affect the detection results

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